Samsung PN15VT / VO Service Manual page 33

5 Troubleshooting
5-2-5 Unsynchronized Image
Check input signals Pin 2
and 3 of CN202.
Signals are right?
Yes
Signals at Pin 28 and 29 of
IC201 are right?
Yes
Signals at Pin 30 and 31 of
IC401 are right?
Yes
Check circuits on Main board.
Done
5-16
No
Check Video Cable
No
Check IC201.
No
Check IC401
PN15VT/VO
PN15HT/HO